NL7204397A - - Google Patents

Info

Publication number
NL7204397A
NL7204397A NL7204397A NL7204397A NL7204397A NL 7204397 A NL7204397 A NL 7204397A NL 7204397 A NL7204397 A NL 7204397A NL 7204397 A NL7204397 A NL 7204397A NL 7204397 A NL7204397 A NL 7204397A
Authority
NL
Netherlands
Application number
NL7204397A
Other versions
NL149597B (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of NL7204397A publication Critical patent/NL7204397A/xx
Publication of NL149597B publication Critical patent/NL149597B/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06Systems determining the position data of a target
    • G01S15/08Systems for measuring distance only
    • G01S15/10Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/12Systems for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06Systems determining position data of a target
    • G01S13/08Systems for measuring distance only
    • G01S13/10Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/18Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein range gates are used
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06Systems determining the position data of a target
    • G01S15/08Systems for measuring distance only
    • G01S15/10Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/102Systems for measuring distance only using transmission of interrupted, pulse-modulated waves using transmission of pulses having some particular characteristics
    • G01S15/107Systems for measuring distance only using transmission of interrupted, pulse-modulated waves using transmission of pulses having some particular characteristics using frequency agility of carrier wave
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00Communications, electrical: acoustic wave systems and devices
    • Y10S367/901Noise or unwanted signal reduction in nonseismic receiving system

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
NL727204397A 1971-04-02 1972-03-30 DEVICE FOR LOCATING OBJECTS. NL149597B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE04303/71A SE351303B (en) 1971-04-02 1971-04-02

Publications (2)

Publication Number Publication Date
NL7204397A true NL7204397A (en) 1972-10-04
NL149597B NL149597B (en) 1976-05-17

Family

ID=20263888

Family Applications (1)

Application Number Title Priority Date Filing Date
NL727204397A NL149597B (en) 1971-04-02 1972-03-30 DEVICE FOR LOCATING OBJECTS.

Country Status (9)

Country Link
US (1) US3836949A (en)
CA (1) CA959570A (en)
DE (1) DE2216167A1 (en)
FR (1) FR2135154B1 (en)
GB (1) GB1390824A (en)
IT (1) IT952515B (en)
NL (1) NL149597B (en)
NO (1) NO127521B (en)
SE (1) SE351303B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE456372B (en) * 1984-04-06 1988-09-26 Bt Ind Ab PROCEDURE TO HAVE AN OPERATOR-FREE MACHINE DETECTING DIFFICULTIES
DE4121274C2 (en) * 1991-06-14 2003-05-08 Diehl Munitionssysteme Gmbh Sensor device for triggering an active body
DE4133543C2 (en) * 1991-10-10 2001-12-13 Diehl Stiftung & Co Helicopter defense mine
DE19738146B4 (en) * 1997-09-01 2005-05-12 Fresenius Ag Ultrasonic transmitter, in particular for an air bubble detector
US9787413B2 (en) * 2014-12-08 2017-10-10 Walid Khairy Mohamed Ahmed Circuits, systems and methods of hybrid electromagnetic and piezoelectric communicators
US10756811B2 (en) 2017-09-10 2020-08-25 Mohsen Sarraf Method and system for a location determination using bi-modal signals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381292A (en) * 1965-11-01 1968-04-30 Army Usa Radar detection system
US3614719A (en) * 1968-11-25 1971-10-19 United Aircraft Corp Adaptive pulse echo target identification system

Also Published As

Publication number Publication date
NO127521B (en) 1973-07-02
NL149597B (en) 1976-05-17
US3836949A (en) 1974-09-17
FR2135154B1 (en) 1977-08-26
CA959570A (en) 1974-12-17
DE2216167A1 (en) 1972-10-26
GB1390824A (en) 1975-04-16
SE351303B (en) 1972-11-20
FR2135154A1 (en) 1972-12-15
IT952515B (en) 1973-07-30

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